Robot cleaner



FIG. 1 is a perspective view of a robot cleaner showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a perspective view, from which its dust canister is detached.

The broken lines represent unclaimed portions of the robot cleaner and form no part of the claimed design. 

CLAIM We claim the ornamental design for a robot cleaner, as shown and described. 